Horace Mann invented school and what is today the United States' modern school system. Horace was born in 1796 in Massachusetts and became the Secretary of Education in Massachusettes where he championed an organized and set curriculum of core knowledge for each student.
The oath was administered by Robert R. Livingston.
Hope this helps.
The answer is C. Oh, and I found a resource to back it up:
The Space Age is thought to have officially begun on October 4th, 1957, with the launch of Sputnik 1 by the Soviet Union – the first artificial satellite to be launched into orbit.